Iran will never develop a nuclear bomb, Iranian Supreme Leader Ayatollah Ali Khamenei told leaders of developing countries during a meeting in Tehran. “Our motto is nuclear energy for all and nuclear weapons for none,” Reuters quoted Khamenei as saying at the Non-Aligned Movement summit on Thursday. “Iran will never pursue nuclear weapons, but it will not give up its national right to peaceful nuclear energy,” he said. Khamenei slammed the UN Security Council as an unjust relic of the past, which the US uses “to impose their bullying manner on the world.”